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双花颗粒调脂作用实验研究

Keywords: 双花颗粒,高脂血症,血脂,脂质过氧化,血液流变学,脂质排泄

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Abstract:

目的:研究双花颗粒对正常小鼠及不同高脂血症动物模型血脂的影响。方法:分别采用蛋黄乳致急性高脂血症和TritonWR-1339诱导的内源性高脂血症小鼠模型及食饵性高脂血症大鼠模型,观察不同剂量双花颗粒对高脂血症的预防作用。结果:与空白组比较,双花颗粒5.6,11.3,22.5g·kg-1能有效降低正常小鼠血清甘油三酯(TG)水平(P<0.05,P<0.01),对总胆固醇(TC)、高密度脂蛋白胆固醇(HDL-C)和肝指数无明显影响;双花颗粒5.6,11.3g·kg-1显著降低蛋黄乳高脂血症小鼠血清TC水平,22.5g·kg-1显著降低TritonWR-1339诱导的高脂血症小鼠血清低密度脂蛋白胆固醇(LDL-C)水平(P<0.05,P<0.01);双花颗粒能有效抑制高脂血症大鼠血清和肝脏TC,TG,LDL-C水平,升高HDL-C值,使血清超氧化物歧化酶(SOD)、脂蛋白脂酶(LPL)、肝脂酶(HL)、总脂酶(LA)活性升高,降低丙二醛(MDA)与游离脂肪酸(NEFA)含量,同时显著降低不同切变率下的全血黏度和全血还原黏度、血浆黏度、红细胞刚性(IER)和聚集(IEA)指数(P<0.05,P<0.01)。双花颗粒能在一定程度上减轻高脂饮食造成的脂肪肝损伤。与高脂模型组相比,双花颗粒各给药组大鼠粪便中脂质含量无显著增加。结论:双花颗粒能明显调节高脂血症小鼠或大鼠脂质代谢紊乱,其调脂机制不是通过增加脂质排泄来实现,可能与其抗脂质过氧化,改善血液流变性,提高LPL,HL,LA酶活性有关。

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